Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset brings an average high-temperature of a still hot 86.2°F (30.1°C), showing a minute difference from August's 91°F (32.8°C). Throughout September in Columbus, a steady low-temperature average of 66°F (18.9°C) is noted.Heat index
The heat index for September is appraised at a fiery hot 96.8°F (36°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The average relative humidity in September in Columbus is 72%.Rainfall
September is the month with the least rainfall in Columbus. Rain falls for 8.7 days and accumulates 0.43" (11mm) of precipitation.Snowfall
March through November are months without snowfall in Columbus.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:39 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Columbus, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Columbus in September?
What is the average humidity in September in Columbus?
What is the driest month in Columbus?
How much does it rain in Columbus in September?
When it does not snow in Columbus?
How many hours of daylight does Columbus have in September?
When is the sunrise / sunset in September in Columbus?
How long on average sun shines in September in Columbus?
What is the UV index intensity in September in Columbus?
Average temperature in September
Columbus, MS
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in September
Columbus, MS
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Columbus, MS
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Columbus, MS
- Average humidity in September: 72%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Columbus, MS
- Average rainfall in September: 0.43"
The wettest months (with the highest rainfall) are February, April and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Columbus, MS
- Average rainfall days in September: 8.7 days
The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (6 days).
Average snowfall in September
Columbus, MS
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Columbus, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Columbus, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Columbus, MS
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (23 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in September
Columbus, MS
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Columbus, MS
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in September
Columbus, MS
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Columbus, Mississippi, USA
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